php用curl模拟提交XML数据，接收处理

$url = "http://localhost/response.php";
$data = 'wxf8b4f85f3a794e771001错误描述transaction_id=335344535341393860740f8164781a303f4d5a944a2dfc68411a8c7e4fbeasha1';

$ch = curl_init();
$header[] = "Content-type: text/xml";//定义content-type为xml
curl_setopt($ch, CURLOPT_URL, $url); //定义表单提交地址
curl_setopt($ch, CURLOPT_POST, 1);   //定义提交类型 1：POST ；0：GET
curl_setopt($ch, CURLOPT_HEADER, 1); //定义是否显示状态头 1：显示 ； 0：不显示
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);//定义请求类型
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);//定义是否直接输出返回流
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); //定义提交的数据，这里是XML文件
$result = curl_exec($ch);
curl_close($ch);//关闭

接收处理

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);